38401666707 has 16 divisors (see below), whose sum is σ = 57067493760. Its totient is φ = 22826996352.

The previous prime is 38401666679. The next prime is 38401666753. The reversal of 38401666707 is 70766610483.

It is not a de Polignac number, because 38401666707 - 2¹⁶ = 38401601171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38401666007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19814133 + ... + 19816070.

It is an arithmetic number, because the mean of its divisors is an integer number (3566718360).

Almost surely, 2^38401666707 is an apocalyptic number.

38401666707 is a deficient number, since it is larger than the sum of its proper divisors (18665827053).

38401666707 is a wasteful number, since it uses less digits than its factorization.

38401666707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39630242.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 38401666707 in words is "thirty-eight billion, four hundred one million, six hundred sixty-six thousand, seven hundred seven".