2155651710 has 32 divisors (see below), whose sum is σ = 5283643392. Its totient is φ = 562609440.

The previous prime is 2155651651. The next prime is 2155651723. The reversal of 2155651710 is 171565512.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 763006 + ... + 765825.

It is an arithmetic number, because the mean of its divisors is an integer number (165113856).

Almost surely, 2^2155651710 is an apocalyptic number.

2155651710 is an abundant number, since it is smaller than the sum of its proper divisors (3127991682).

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

2155651710 is a wasteful number, since it uses less digits than its factorization.

2155651710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528888.

The product of its (nonzero) digits is 10500, while the sum is 33.

The square root of 2155651710 is about 46428.9964354174. The cubic root of 2155651710 is about 1291.7928140042.

The spelling of 2155651710 in words is "two billion, one hundred fifty-five million, six hundred fifty-one thousand, seven hundred ten".