16901549501 has 2 divisors, whose sum is σ = 16901549502. Its totient is φ = 16901549500.

The previous prime is 16901549477. The next prime is 16901549557. The reversal of 16901549501 is 10594510961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16836360025 + 65189476 = 129755^2 + 8074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16901549501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16901549591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8450774750 + 8450774751.

It is an arithmetic number, because the mean of its divisors is an integer number (8450774751).

Almost surely, 2^16901549501 is an apocalyptic number.

It is an amenable number.

16901549501 is a deficient number, since it is larger than the sum of its proper divisors (1).

16901549501 is an equidigital number, since it uses as much as digits as its factorization.

16901549501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 41.

The spelling of 16901549501 in words is "sixteen billion, nine hundred one million, five hundred forty-nine thousand, five hundred one".