386366669056 has 81 divisors (see below), whose sum is σ = 787123882839. Its totient is φ = 189279787008.

The previous prime is 386366668973. The next prime is 386366669071. The reversal of 386366669056 is 650966663683.

It is a happy number.

The square root of 386366669056 is 621584.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 224312115456 + 162054553600 = 473616^2 + 402560^2 .

It is a super-2 number, since 2×386366669056² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 527102866 + ... + 527103598.

Almost surely, 2^386366669056 is an apocalyptic number.

386366669056 is the 621584-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386366669056

386366669056 is an abundant number, since it is smaller than the sum of its proper divisors (400757213783).

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

386366669056 is an frugal number, since it uses more digits than its factorization.

386366669056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 151165440, while the sum is 64.

Multiplying 386366669056 by its sum of digits (64), we get a square (24727466819584 = 4972672²).

386366669056 divided by its sum of digits (64) gives a square (6036979204 = 77698²).

The spelling of 386366669056 in words is "three hundred eighty-six billion, three hundred sixty-six million, six hundred sixty-nine thousand, fifty-six".