64554351266 has 4 divisors (see below), whose sum is σ = 96831526902. Its totient is φ = 32277175632.

The previous prime is 64554351263. The next prime is 64554351271. The reversal of 64554351266 is 66215345546.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 59253783241 + 5300568025 = 243421^2 + 72805^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64554351266.

It is not an unprimeable number, because it can be changed into a prime (64554351263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16138587815 + ... + 16138587818.

Almost surely, 2^64554351266 is an apocalyptic number.

64554351266 is a deficient number, since it is larger than the sum of its proper divisors (32277175636).

64554351266 is a wasteful number, since it uses less digits than its factorization.

64554351266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32277175635.

The product of its digits is 2592000, while the sum is 47.

The spelling of 64554351266 in words is "sixty-four billion, five hundred fifty-four million, three hundred fifty-one thousand, two hundred sixty-six".