109020405951 has 16 divisors (see below), whose sum is σ = 161542927200. Its totient is φ = 72666224064.

The previous prime is 109020405943. The next prime is 109020405971. The reversal of 109020405951 is 159504020901.

109020405951 is a `hidden beast` number, since 1 + 0 + 9 + 0 + 20 + 40 + 595 + 1 = 666.

It is not a de Polignac number, because 109020405951 - 2³ = 109020405943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109020405941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246936 + ... + 528221.

It is an arithmetic number, because the mean of its divisors is an integer number (10096432950).

Almost surely, 2^109020405951 is an apocalyptic number.

109020405951 is a deficient number, since it is larger than the sum of its proper divisors (52522521249).

109020405951 is an equidigital number, since it uses as much as digits as its factorization.

109020405951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780375 (or 780369 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The spelling of 109020405951 in words is "one hundred nine billion, twenty million, four hundred five thousand, nine hundred fifty-one".