100273156820 has 24 divisors (see below), whose sum is σ = 210642060384. Its totient is φ = 40096228256.

The previous prime is 100273156817. The next prime is 100273156889. The reversal of 100273156820 is 28651372001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751454 + ... + 874773.

It is an arithmetic number, because the mean of its divisors is an integer number (8776752516).

Almost surely, 2^100273156820 is an apocalyptic number.

100273156820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100273156820 is an abundant number, since it is smaller than the sum of its proper divisors (110368903564).

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

100273156820 is a wasteful number, since it uses less digits than its factorization.

100273156820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629319 (or 1629317 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 100273156820 in words is "one hundred billion, two hundred seventy-three million, one hundred fifty-six thousand, eight hundred twenty".