102401507207666 has 8 divisors (see below), whose sum is σ = 153800970077484. Its totient is φ = 51134517181840.

The previous prime is 102401507207639. The next prime is 102401507207737. The reversal of 102401507207666 is 666702705104201.

It can be written as a sum of positive squares in 2 ways, for example, as 102283185655225 + 118321552441 = 10113515^2 + 343979^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102401507207666.

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, 33118209065 + ... + 33118212156.

Almost surely, 2^{102401507207666} is an apocalyptic number.

102401507207666 is a deficient number, since it is larger than the sum of its proper divisors (51399462869818).

102401507207666 is an equidigital number, since it uses as much as digits as its factorization.

102401507207666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66236421996.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 102401507207666 in words is "one hundred two trillion, four hundred one billion, five hundred seven million, two hundred seven thousand, six hundred sixty-six".