334155478664 has 64 divisors (see below), whose sum is σ = 754286428800. Its totient is φ = 135572742144.

The previous prime is 334155478639. The next prime is 334155478681. The reversal of 334155478664 is 466874551433.

It is a happy number.

It is a super-2 number, since 2×334155478664² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1346504 + ... + 1575240.

It is an arithmetic number, because the mean of its divisors is an integer number (11785725450).

Almost surely, 2^334155478664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 334155478664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377143214400).

334155478664 is an abundant number, since it is smaller than the sum of its proper divisors (420130950136).

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

334155478664 is a wasteful number, since it uses less digits than its factorization.

334155478664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230142 (or 230138 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 56.

The spelling of 334155478664 in words is "three hundred thirty-four billion, one hundred fifty-five million, four hundred seventy-eight thousand, six hundred sixty-four".