545801798656 has 33 divisors (see below), whose sum is σ = 1091117848879. Its totient is φ = 272889078784.

The previous prime is 545801798653. The next prime is 545801798677. The reversal of 545801798656 is 656897108545.

The square root of 545801798656 is 738784.

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

It is a super-2 number, since 2×545801798656² (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 not an unprimeable number, because it can be changed into a prime (545801798651) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 23629545 + ... + 23652631.

Almost surely, 2^545801798656 is an apocalyptic number.

545801798656 is the 738784-th square number.

It is an amenable number.

545801798656 is a deficient number, since it is larger than the sum of its proper divisors (545316050223).

545801798656 is an frugal number, since it uses more digits than its factorization.

545801798656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46194 (or 23089 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 64.

Multiplying 545801798656 by its sum of digits (64), we get a square (34931315113984 = 5910272²).

545801798656 divided by its sum of digits (64) gives a square (8528153104 = 92348²).

The spelling of 545801798656 in words is "five hundred forty-five billion, eight hundred one million, seven hundred ninety-eight thousand, six hundred fifty-six".