4006664401377 has 16 divisors (see below), whose sum is σ = 5876039759040. Its totient is φ = 2428281452960.

The previous prime is 4006664401361. The next prime is 4006664401409. The reversal of 4006664401377 is 7731044666004.

It is not a de Polignac number, because 4006664401377 - 2⁴ = 4006664401361 is a prime.

It is a super-2 number, since 2×4006664401377² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4006664401177) 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, 501707052 + ... + 501715037.

It is an arithmetic number, because the mean of its divisors is an integer number (367252484940).

Almost surely, 2^{4006664401377} is an apocalyptic number.

It is an amenable number.

4006664401377 is a deficient number, since it is larger than the sum of its proper divisors (1869375357663).

4006664401377 is a wasteful number, since it uses less digits than its factorization.

4006664401377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003422125 (or 1003422103 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 4006664401377 in words is "four trillion, six billion, six hundred sixty-four million, four hundred one thousand, three hundred seventy-seven".