20152355630 has 32 divisors (see below), whose sum is σ = 39581434080. Its totient is φ = 7326363520.

The previous prime is 20152355623. The next prime is 20152355633. The reversal of 20152355630 is 3655325102.

It is a super-2 number, since 2×20152355630² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20152355633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490316 + ... + 529824.

It is an arithmetic number, because the mean of its divisors is an integer number (1236919815).

Almost surely, 2^20152355630 is an apocalyptic number.

20152355630 is a deficient number, since it is larger than the sum of its proper divisors (19429078450).

20152355630 is a wasteful number, since it uses less digits than its factorization.

20152355630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44164.

The product of its (nonzero) digits is 27000, while the sum is 32.

The spelling of 20152355630 in words is "twenty billion, one hundred fifty-two million, three hundred fifty-five thousand, six hundred thirty".