766660087760701 has 8 divisors (see below), whose sum is σ = 793145778528600. Its totient is φ = 740177672727360.

The previous prime is 766660087760659. The next prime is 766660087760711. The reversal of 766660087760701 is 107067780066667.

It can be written as a sum of positive squares in 4 ways, for example, as 1220770863225 + 765439316897476 = 1104885^2 + 27666574^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 766660087760701 - 2⁴⁷ = 625922599405373 is a prime.

It is a super-2 number, since 2×766660087760701² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766660087760711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 818457466 + ... + 819393643.

It is an arithmetic number, because the mean of its divisors is an integer number (99143222316075).

Almost surely, 2^{766660087760701} is an apocalyptic number.

It is an amenable number.

766660087760701 is a deficient number, since it is larger than the sum of its proper divisors (26485690767899).

766660087760701 is a wasteful number, since it uses less digits than its factorization.

766660087760701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637867279.

The product of its (nonzero) digits is 149361408, while the sum is 67.

The spelling of 766660087760701 in words is "seven hundred sixty-six trillion, six hundred sixty billion, eighty-seven million, seven hundred sixty thousand, seven hundred one".