9900456501 has 16 divisors (see below), whose sum is σ = 14219066624. Its totient is φ = 6091291584.

The previous prime is 9900456497. The next prime is 9900456523. The reversal of 9900456501 is 1056540099.

It is not a de Polignac number, because 9900456501 - 2² = 9900456497 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9900456501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9900456101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178260 + ... + 227106.

It is an arithmetic number, because the mean of its divisors is an integer number (888691664).

Almost surely, 2^9900456501 is an apocalyptic number.

It is an amenable number.

9900456501 is a deficient number, since it is larger than the sum of its proper divisors (4318610123).

9900456501 is a wasteful number, since it uses less digits than its factorization.

9900456501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54060.

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 9900456501 is about 99501.0376880563. The cubic root of 9900456501 is about 2147.2621722916.

The spelling of 9900456501 in words is "nine billion, nine hundred million, four hundred fifty-six thousand, five hundred one".