1355557500000 has 576 divisors, whose sum is σ = 5257582634304. Its totient is φ = 328560000000.

The previous prime is 1355557499999. The next prime is 1355557500029. The reversal of 1355557500000 is 57555531.

1355557500000 is a `hidden beast` number, since 1 + 3 + 55 + 557 + 50 + 0 + 0 + 0 + 0 = 666.

It is a super-2 number, since 2×1355557500000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 247497262 + ... + 247502738.

It is an arithmetic number, because the mean of its divisors is an integer number (9127747629).

Almost surely, 2^{1355557500000} is an apocalyptic number.

1355557500000 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 1355557500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2628791317152).

1355557500000 is an abundant number, since it is smaller than the sum of its proper divisors (3902025134304).

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

1355557500000 is an frugal number, since it uses more digits than its factorization.

1355557500000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5539 (or 5498 counting only the distinct ones).

The product of its (nonzero) digits is 65625, while the sum is 36.

The spelling of 1355557500000 in words is "one trillion, three hundred fifty-five billion, five hundred fifty-seven million, five hundred thousand".