16261366450 has 24 divisors (see below), whose sum is σ = 34567019712. Its totient is φ = 5575325520.

The previous prime is 16261366423. The next prime is 16261366463. The reversal of 16261366450 is 5466316261.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23230174 + ... + 23230873.

It is an arithmetic number, because the mean of its divisors is an integer number (1440292488).

Almost surely, 2^16261366450 is an apocalyptic number.

16261366450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16261366450 is an abundant number, since it is smaller than the sum of its proper divisors (18305653262).

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

16261366450 is a wasteful number, since it uses less digits than its factorization.

16261366450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46461066 (or 46461061 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 16261366450 in words is "sixteen billion, two hundred sixty-one million, three hundred sixty-six thousand, four hundred fifty".