2100455623552 has 64 divisors (see below), whose sum is σ = 4916057675760. Its totient is φ = 881310044160.

The previous prime is 2100455623543. The next prime is 2100455623571. The reversal of 2100455623552 is 2553265540012.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×2100455623552² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57358653 + ... + 57395260.

Almost surely, 2^{2100455623552} is an apocalyptic number.

2100455623552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2100455623552 is an abundant number, since it is smaller than the sum of its proper divisors (2815602052208).

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

2100455623552 is a wasteful number, since it uses less digits than its factorization.

2100455623552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114753951 (or 114753939 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 2100455623552 in words is "two trillion, one hundred billion, four hundred fifty-five million, six hundred twenty-three thousand, five hundred fifty-two".