36664459776 has 240 divisors, whose sum is σ = 128048304384. Its totient is φ = 9859203072.

The previous prime is 36664459763. The next prime is 36664459817. The reversal of 36664459776 is 67795446663.

It is a super-2 number, since 2×36664459776² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514921 + ... + 581783.

Almost surely, 2^36664459776 is an apocalyptic number.

36664459776 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36664459776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64024152192).

36664459776 is an abundant number, since it is smaller than the sum of its proper divisors (91383844608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36664459776 is a wasteful number, since it uses less digits than its factorization.

36664459776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66911 (or 66892 counting only the distinct ones).

The product of its digits is 137168640, while the sum is 63.

The spelling of 36664459776 in words is "thirty-six billion, six hundred sixty-four million, four hundred fifty-nine thousand, seven hundred seventy-six".