66037306707 has 24 divisors (see below), whose sum is σ = 97830708768. Its totient is φ = 42908112000.

The previous prime is 66037306663. The next prime is 66037306747. The reversal of 66037306707 is 70760373066.

66037306707 is a `hidden beast` number, since 6 + 603 + 7 + 30 + 6 + 7 + 0 + 7 = 666.

It is not a de Polignac number, because 66037306707 - 2¹⁰ = 66037305683 is a prime.

It is a super-2 number, since 2×66037306707² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66037306747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 386394 + ... + 530447.

It is an arithmetic number, because the mean of its divisors is an integer number (4076279532).

Almost surely, 2^66037306707 is an apocalyptic number.

66037306707 is a deficient number, since it is larger than the sum of its proper divisors (31793402061).

66037306707 is a wasteful number, since it uses less digits than its factorization.

66037306707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917051 (or 917048 counting only the distinct ones).

The product of its (nonzero) digits is 666792, while the sum is 45.

The spelling of 66037306707 in words is "sixty-six billion, thirty-seven million, three hundred six thousand, seven hundred seven".