16626226140765 has 24 divisors (see below), whose sum is σ = 29812543427160. Its totient is φ = 8561550931584.

The previous prime is 16626226140739. The next prime is 16626226140767. The reversal of 16626226140765 is 56704162262661.

16626226140765 is a `hidden beast` number, since 1 + 6 + 6 + 2 + 6 + 226 + 1 + 407 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1229909834169 + 15396316306596 = 1109013^2 + 3923814^2 .

It is not a de Polignac number, because 16626226140765 - 2¹⁰ = 16626226139741 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16626226140767) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6370200282 + ... + 6370202891.

It is an arithmetic number, because the mean of its divisors is an integer number (1242189309465).

Almost surely, 2^{16626226140765} is an apocalyptic number.

16626226140765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16626226140765 is a deficient number, since it is larger than the sum of its proper divisors (13186317286395).

16626226140765 is a wasteful number, since it uses less digits than its factorization.

16626226140765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12740403213 (or 12740403210 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 16626226140765 in words is "sixteen trillion, six hundred twenty-six billion, two hundred twenty-six million, one hundred forty thousand, seven hundred sixty-five".