20256244006 has 32 divisors (see below), whose sum is σ = 32235033600. Its totient is φ = 9531375840.

The previous prime is 20256243991. The next prime is 20256244031. The reversal of 20256244006 is 60044265202.

It is a super-2 number, since 2×20256244006² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593925 + ... + 627103.

It is an arithmetic number, because the mean of its divisors is an integer number (1007344800).

Almost surely, 2^20256244006 is an apocalyptic number.

20256244006 is a deficient number, since it is larger than the sum of its proper divisors (11978789594).

20256244006 is a wasteful number, since it uses less digits than its factorization.

20256244006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33484.

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 20256244006 in words is "twenty billion, two hundred fifty-six million, two hundred forty-four thousand, six".