2155715880810 has 16 divisors (see below), whose sum is σ = 5173718114016. Its totient is φ = 574857568208.

The previous prime is 2155715880793. The next prime is 2155715880827. The reversal of 2155715880810 is 180885175512.

It is an interprime number because it is at equal distance from previous prime (2155715880793) and next prime (2155715880827).

It is a super-2 number, since 2×2155715880810² (a number of 25 digits) contains 22 as substring.

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, 35928597984 + ... + 35928598043.

It is an arithmetic number, because the mean of its divisors is an integer number (323357382126).

Almost surely, 2^{2155715880810} is an apocalyptic number.

2155715880810 is an abundant number, since it is smaller than the sum of its proper divisors (3018002233206).

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

2155715880810 is a wasteful number, since it uses less digits than its factorization.

2155715880810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71857196037.

The product of its (nonzero) digits is 896000, while the sum is 51.

The spelling of 2155715880810 in words is "two trillion, one hundred fifty-five billion, seven hundred fifteen million, eight hundred eighty thousand, eight hundred ten".