655711681254 has 96 divisors (see below), whose sum is σ = 1565066966400. Its totient is φ = 182553049728.

The previous prime is 655711681201. The next prime is 655711681271. The reversal of 655711681254 is 452186117556.

It is a junction number, because it is equal to n+sod(n) for n = 655711681197 and 655711681206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1597297 + ... + 1965395.

It is an arithmetic number, because the mean of its divisors is an integer number (16302780900).

Almost surely, 2^655711681254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655711681254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (782533483200).

655711681254 is an abundant number, since it is smaller than the sum of its proper divisors (909355285146).

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

655711681254 is a wasteful number, since it uses less digits than its factorization.

655711681254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368274 (or 368267 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 51.

The spelling of 655711681254 in words is "six hundred fifty-five billion, seven hundred eleven million, six hundred eighty-one thousand, two hundred fifty-four".