134556374640 has 80 divisors (see below), whose sum is σ = 421425089568. Its totient is φ = 35511779328.

The previous prime is 134556374629. The next prime is 134556374663. The reversal of 134556374640 is 46473655431.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 134556374640.

It is a congruent number.

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, 2866677 + ... + 2913236.

Almost surely, 2^134556374640 is an apocalyptic number.

134556374640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134556374640 is an abundant number, since it is smaller than the sum of its proper divisors (286868714928).

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

134556374640 is a wasteful number, since it uses less digits than its factorization.

134556374640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780026 (or 5780020 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 48.

The spelling of 134556374640 in words is "one hundred thirty-four billion, five hundred fifty-six million, three hundred seventy-four thousand, six hundred forty".