2153661103524 has 192 divisors, whose sum is σ = 6287358156800. Its totient is φ = 560009728512.

The previous prime is 2153661103523. The next prime is 2153661103567. The reversal of 2153661103524 is 4253011663512.

It is a happy number.

It is a super-2 number, since 2×2153661103524² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2153661103523) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4434282 + ... + 4895934.

Almost surely, 2^{2153661103524} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2153661103524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3143679078400).

2153661103524 is an abundant number, since it is smaller than the sum of its proper divisors (4133697053276).

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

2153661103524 is a wasteful number, since it uses less digits than its factorization.

2153661103524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461802 (or 461800 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 2153661103524 in words is "two trillion, one hundred fifty-three billion, six hundred sixty-one million, one hundred three thousand, five hundred twenty-four".