61051106040 has 32 divisors (see below), whose sum is σ = 183153318480. Its totient is φ = 16280294912.

The previous prime is 61051105991. The next prime is 61051106063. The reversal of 61051106040 is 4060115016.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 61051106040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254379489 + ... + 254379728.

Almost surely, 2^61051106040 is an apocalyptic number.

61051106040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61051106040 is an abundant number, since it is smaller than the sum of its proper divisors (122102212440).

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

61051106040 is a wasteful number, since it uses less digits than its factorization.

61051106040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508759231 (or 508759227 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The spelling of 61051106040 in words is "sixty-one billion, fifty-one million, one hundred six thousand, forty".