20152056506 has 8 divisors (see below), whose sum is σ = 30228829344. Its totient is φ = 10075780060.

The previous prime is 20152056497. The next prime is 20152056527. The reversal of 20152056506 is 60565025102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20152056506² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3731 + ... + 200793.

It is an arithmetic number, because the mean of its divisors is an integer number (3778603668).

Almost surely, 2^20152056506 is an apocalyptic number.

20152056506 is a deficient number, since it is larger than the sum of its proper divisors (10076772838).

20152056506 is a wasteful number, since it uses less digits than its factorization.

20152056506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248196.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 20152056506 in words is "twenty billion, one hundred fifty-two million, fifty-six thousand, five hundred six".