6990907516 has 12 divisors (see below), whose sum is σ = 12236778232. Its totient is φ = 3494685168.

The previous prime is 6990907507. The next prime is 6990907531. The reversal of 6990907516 is 6157090996.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 171435 + ... + 208258.

Almost surely, 2^6990907516 is an apocalyptic number.

It is an amenable number.

6990907516 is a deficient number, since it is larger than the sum of its proper divisors (5245870716).

6990907516 is a wasteful number, since it uses less digits than its factorization.

6990907516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384300 (or 384298 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 52.

The square root of 6990907516 is about 83611.6470116455. The cubic root of 6990907516 is about 1912.1025717018.

The spelling of 6990907516 in words is "six billion, nine hundred ninety million, nine hundred seven thousand, five hundred sixteen".