100721055463 has 6 divisors (see below), whose sum is σ = 115110737304. Its totient is φ = 86331613536.

The previous prime is 100721055427. The next prime is 100721055497. The reversal of 100721055463 is 364550127001.

It is a de Polignac number, because none of the positive numbers 2^k-100721055463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100721055403) 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 in 5 ways as a sum of consecutive naturals, for example, 779695 + ... + 899647.

It is an arithmetic number, because the mean of its divisors is an integer number (19185122884).

Almost surely, 2^100721055463 is an apocalyptic number.

100721055463 is a deficient number, since it is larger than the sum of its proper divisors (14389681841).

100721055463 is an frugal number, since it uses more digits than its factorization.

100721055463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239913 (or 119960 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 100721055463 in words is "one hundred billion, seven hundred twenty-one million, fifty-five thousand, four hundred sixty-three".