2158063402572 has 432 divisors, whose sum is σ = 6978801263616. Its totient is φ = 550293004800.

The previous prime is 2158063402549. The next prime is 2158063402597. The reversal of 2158063402572 is 2752043608512.

2158063402572 is a `hidden beast` number, since 2 + 1 + 5 + 8 + 0 + 634 + 0 + 2 + 5 + 7 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 505280797 + ... + 505285067.

Almost surely, 2^{2158063402572} is an apocalyptic number.

2158063402572 is a gapful number since it is divisible by the number (22) 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 2158063402572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3489400631808).

2158063402572 is an abundant number, since it is smaller than the sum of its proper divisors (4820737861044).

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

2158063402572 is a wasteful number, since it uses less digits than its factorization.

2158063402572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4610 (or 4594 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 2158063402572 in words is "two trillion, one hundred fifty-eight billion, sixty-three million, four hundred two thousand, five hundred seventy-two".