10155720210 has 64 divisors (see below), whose sum is σ = 25791160320. Its totient is φ = 2552195520.

The previous prime is 10155720199. The next prime is 10155720241. The reversal of 10155720210 is 1202755101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62229 + ... + 155511.

It is an arithmetic number, because the mean of its divisors is an integer number (402986880).

Almost surely, 2^10155720210 is an apocalyptic number.

10155720210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10155720210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12895580160).

10155720210 is an abundant number, since it is smaller than the sum of its proper divisors (15635440110).

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

10155720210 is a wasteful number, since it uses less digits than its factorization.

10155720210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93503.

The product of its (nonzero) digits is 700, while the sum is 24.

The spelling of 10155720210 in words is "ten billion, one hundred fifty-five million, seven hundred twenty thousand, two hundred ten".