16642344740 has 24 divisors (see below), whose sum is σ = 39941627712. Its totient is φ = 5705946720.

The previous prime is 16642344713. The next prime is 16642344773. The reversal of 16642344740 is 4744324661.

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, 59436806 + ... + 59437085.

It is an arithmetic number, because the mean of its divisors is an integer number (1664234488).

Almost surely, 2^16642344740 is an apocalyptic number.

16642344740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16642344740 is an abundant number, since it is smaller than the sum of its proper divisors (23299282972).

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

16642344740 is a wasteful number, since it uses less digits than its factorization.

16642344740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118873907 (or 118873905 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 41.

The spelling of 16642344740 in words is "sixteen billion, six hundred forty-two million, three hundred forty-four thousand, seven hundred forty".