6699000729915 has 160 divisors (see below), whose sum is σ = 13753323904320. Its totient is φ = 3092177534976.

The previous prime is 6699000729913. The next prime is 6699000729943. The reversal of 6699000729915 is 5199270009966.

It is not a de Polignac number, because 6699000729915 - 2¹ = 6699000729913 is a prime.

It is a super-2 number, since 2×6699000729915² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6699000729913) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 9358207 + ... + 10048583.

It is an arithmetic number, because the mean of its divisors is an integer number (85958274402).

Almost surely, 2^{6699000729915} is an apocalyptic number.

6699000729915 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6699000729915 is an abundant number, since it is smaller than the sum of its proper divisors (7054323174405).

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

6699000729915 is a wasteful number, since it uses less digits than its factorization.

6699000729915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690523 (or 690514 counting only the distinct ones).

The product of its (nonzero) digits is 16533720, while the sum is 63.

The spelling of 6699000729915 in words is "six trillion, six hundred ninety-nine billion, seven hundred twenty-nine thousand, nine hundred fifteen".