6995669538 has 64 divisors (see below), whose sum is σ = 16459011072. Its totient is φ = 1954255680.

The previous prime is 6995669519. The next prime is 6995669543. The reversal of 6995669538 is 8359665996.

It is a super-2 number, since 2×6995669538² = 97878784569802266888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 701181 + ... + 711087.

It is an arithmetic number, because the mean of its divisors is an integer number (257172048).

Almost surely, 2^6995669538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6995669538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8229505536).

6995669538 is an abundant number, since it is smaller than the sum of its proper divisors (9463341534).

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

6995669538 is a wasteful number, since it uses less digits than its factorization.

6995669538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10759.

The product of its digits is 94478400, while the sum is 66.

The square root of 6995669538 is about 83640.1191892981. The cubic root of 6995669538 is about 1912.5366311237.

The spelling of 6995669538 in words is "six billion, nine hundred ninety-five million, six hundred sixty-nine thousand, five hundred thirty-eight".