6694156500 has 48 divisors (see below), whose sum is σ = 19493388096. Its totient is φ = 1785108000.

The previous prime is 6694156481. The next prime is 6694156517. The reversal of 6694156500 is 56514966.

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, 2229886 + ... + 2232885.

It is an arithmetic number, because the mean of its divisors is an integer number (406112252).

Almost surely, 2^6694156500 is an apocalyptic number.

6694156500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6694156500 is an abundant number, since it is smaller than the sum of its proper divisors (12799231596).

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

6694156500 is a wasteful number, since it uses less digits than its factorization.

6694156500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462793 (or 4462781 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 6694156500 is about 81817.8250749798. The cubic root of 6694156500 is about 1884.6554025826.

The spelling of 6694156500 in words is "six billion, six hundred ninety-four million, one hundred fifty-six thousand, five hundred".