254533222664 has 64 divisors (see below), whose sum is σ = 549003363840. Its totient is φ = 108372971520.

The previous prime is 254533222661. The next prime is 254533222679. The reversal of 254533222664 is 466222335452.

It is a happy number.

It is a super-2 number, since 2×254533222664² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (254533222661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5333372 + ... + 5380884.

It is an arithmetic number, because the mean of its divisors is an integer number (8578177560).

Almost surely, 2^254533222664 is an apocalyptic number.

It is an amenable number.

254533222664 is an abundant number, since it is smaller than the sum of its proper divisors (294470141176).

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

254533222664 is a wasteful number, since it uses less digits than its factorization.

254533222664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48150 (or 48146 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 44.

The spelling of 254533222664 in words is "two hundred fifty-four billion, five hundred thirty-three million, two hundred twenty-two thousand, six hundred sixty-four".