9901261455 has 16 divisors (see below), whose sum is σ = 15845706240. Its totient is φ = 5279443488.

The previous prime is 9901261453. The next prime is 9901261459. The reversal of 9901261455 is 5541621099.

It is not a de Polignac number, because 9901261455 - 2¹ = 9901261453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9901261451) 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, 8275 + ... + 140964.

It is an arithmetic number, because the mean of its divisors is an integer number (990356640).

Almost surely, 2^9901261455 is an apocalyptic number.

9901261455 is a deficient number, since it is larger than the sum of its proper divisors (5944444785).

9901261455 is a wasteful number, since it uses less digits than its factorization.

9901261455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153670.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 9901261455 is about 99505.0825586311. The cubic root of 9901261455 is about 2147.3203649090.

The spelling of 9901261455 in words is "nine billion, nine hundred one million, two hundred sixty-one thousand, four hundred fifty-five".