16421132770 has 32 divisors (see below), whose sum is σ = 33889280256. Its totient is φ = 5611992000.

The previous prime is 16421132737. The next prime is 16421132863. The reversal of 16421132770 is 7723112461.

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, 355381 + ... + 398920.

It is an arithmetic number, because the mean of its divisors is an integer number (1059040008).

Almost surely, 2^16421132770 is an apocalyptic number.

16421132770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16421132770 is an abundant number, since it is smaller than the sum of its proper divisors (17468147486).

16421132770 is a wasteful number, since it uses less digits than its factorization.

16421132770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754626.

The product of its (nonzero) digits is 14112, while the sum is 34.

The spelling of 16421132770 in words is "sixteen billion, four hundred twenty-one million, one hundred thirty-two thousand, seven hundred seventy".