699666662477952 has 768 divisors, whose sum is σ = 2266314431472000. Its totient is φ = 213582474805248.

The previous prime is 699666662477941. The next prime is 699666662477987. The reversal of 699666662477952 is 259774266666996.

It is a super-2 number, since 2×699666662477952² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 137216444299 + ... + 137216449397.

Almost surely, 2^{699666662477952} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 699666662477952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1133157215736000).

699666662477952 is an abundant number, since it is smaller than the sum of its proper divisors (1566647768994048).

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

699666662477952 is a wasteful number, since it uses less digits than its factorization.

699666662477952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7755 (or 7731 counting only the distinct ones).

The product of its digits is 133327918080, while the sum is 90.

The spelling of 699666662477952 in words is "six hundred ninety-nine trillion, six hundred sixty-six billion, six hundred sixty-two million, four hundred seventy-seven thousand, nine hundred fifty-two".