36664637606437 has 8 divisors (see below), whose sum is σ = 37213082333856. Its totient is φ = 36116228506512.

The previous prime is 36664637606431. The next prime is 36664637606483. The reversal of 36664637606437 is 73460673646663.

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 36664637606437 - 2²³ = 36664629217829 is a prime.

It is a super-2 number, since 2×36664637606437² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36664637606431) 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, 6829663 + ... + 10953244.

It is an arithmetic number, because the mean of its divisors is an integer number (4651635291732).

Almost surely, 2^{36664637606437} is an apocalyptic number.

It is an amenable number.

36664637606437 is a deficient number, since it is larger than the sum of its proper divisors (548444727419).

36664637606437 is a wasteful number, since it uses less digits than its factorization.

36664637606437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17813747.

The product of its (nonzero) digits is 987614208, while the sum is 67.

The spelling of 36664637606437 in words is "thirty-six trillion, six hundred sixty-four billion, six hundred thirty-seven million, six hundred six thousand, four hundred thirty-seven".