13235060640 has 96 divisors (see below), whose sum is σ = 43035342336. Its totient is φ = 3415495680.

The previous prime is 13235060623. The next prime is 13235060651. The reversal of 13235060640 is 4606053231.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13235060598 and 13235060607.

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, 429847 + ... + 459606.

It is an arithmetic number, because the mean of its divisors is an integer number (448284816).

Almost surely, 2^13235060640 is an apocalyptic number.

13235060640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13235060640 is an abundant number, since it is smaller than the sum of its proper divisors (29800281696).

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

13235060640 is a wasteful number, since it uses less digits than its factorization.

13235060640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889502 (or 889494 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 13235060640 in words is "thirteen billion, two hundred thirty-five million, sixty thousand, six hundred forty".