11644501674 has 16 divisors (see below), whose sum is σ = 25080465312. Its totient is φ = 3582923568.

The previous prime is 11644501669. The next prime is 11644501699. The reversal of 11644501674 is 47610544611.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74644164 + ... + 74644319.

It is an arithmetic number, because the mean of its divisors is an integer number (1567529082).

Almost surely, 2^11644501674 is an apocalyptic number.

11644501674 is an abundant number, since it is smaller than the sum of its proper divisors (13435963638).

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

11644501674 is a wasteful number, since it uses less digits than its factorization.

11644501674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149288501.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 11644501674 in words is "eleven billion, six hundred forty-four million, five hundred one thousand, six hundred seventy-four".