20035252156 has 24 divisors (see below), whose sum is σ = 36285480000. Its totient is φ = 9668253504.

The previous prime is 20035252123. The next prime is 20035252169. The reversal of 20035252156 is 65125253002.

It is a happy number.

It is a super-2 number, since 2×20035252156² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261805 + ... + 329563.

It is an arithmetic number, because the mean of its divisors is an integer number (1511895000).

Almost surely, 2^20035252156 is an apocalyptic number.

It is an amenable number.

20035252156 is a deficient number, since it is larger than the sum of its proper divisors (16250227844).

20035252156 is a wasteful number, since it uses less digits than its factorization.

20035252156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70341 (or 70339 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 20035252156 in words is "twenty billion, thirty-five million, two hundred fifty-two thousand, one hundred fifty-six".