103555465640 has 128 divisors (see below), whose sum is σ = 259355416320. Its totient is φ = 36897792000.

The previous prime is 103555465633. The next prime is 103555465687. The reversal of 103555465640 is 46564555301.

It is a super-3 number, since 3×103555465640³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 103555465591 and 103555465600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4298669 + ... + 4322691.

It is an arithmetic number, because the mean of its divisors is an integer number (2026214190).

Almost surely, 2^103555465640 is an apocalyptic number.

103555465640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103555465640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129677708160).

103555465640 is an abundant number, since it is smaller than the sum of its proper divisors (155799950680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103555465640 is a wasteful number, since it uses less digits than its factorization.

103555465640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24243 (or 24239 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 103555465640 in words is "one hundred three billion, five hundred fifty-five million, four hundred sixty-five thousand, six hundred forty".