105618990970 has 16 divisors (see below), whose sum is σ = 191079233928. Its totient is φ = 42033140800.

The previous prime is 105618990949. The next prime is 105618990977. The reversal of 105618990970 is 79099816501.

It can be written as a sum of positive squares in 4 ways, for example, as 96912048249 + 8706942721 = 311307^2 + 93311^2 .

It is a super-2 number, since 2×105618990970² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105618990977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26804881 + ... + 26808820.

Almost surely, 2^105618990970 is an apocalyptic number.

105618990970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105618990970 is a deficient number, since it is larger than the sum of its proper divisors (85460242958).

105618990970 is a wasteful number, since it uses less digits than its factorization.

105618990970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53613905.

The product of its (nonzero) digits is 1224720, while the sum is 55.

The spelling of 105618990970 in words is "one hundred five billion, six hundred eighteen million, nine hundred ninety thousand, nine hundred seventy".