6156621006 has 16 divisors (see below), whose sum is σ = 12375120000. Its totient is φ = 2041894008.

The previous prime is 6156621001. The next prime is 6156621101. The reversal of 6156621006 is 6001266516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6156621001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2576956 + ... + 2579343.

It is an arithmetic number, because the mean of its divisors is an integer number (773445000).

Almost surely, 2^6156621006 is an apocalyptic number.

6156621006 is an abundant number, since it is smaller than the sum of its proper divisors (6218498994).

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

6156621006 is a wasteful number, since it uses less digits than its factorization.

6156621006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5156503.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 6156621006 is about 78464.1383435771. The cubic root of 6156621006 is about 1832.7960488448.

The spelling of 6156621006 in words is "six billion, one hundred fifty-six million, six hundred twenty-one thousand, six".