104951538666 has 96 divisors (see below), whose sum is σ = 252461231568. Its totient is φ = 31304033280.

The previous prime is 104951538649. The next prime is 104951538673. The reversal of 104951538666 is 666835159401.

It can be written as a sum of positive squares in 8 ways, for example, as 2378025225 + 102573513441 = 48765^2 + 320271^2 .

It is a super-2 number, since 2×104951538666² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1471420 + ... + 1541096.

Almost surely, 2^104951538666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104951538666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126230615784).

104951538666 is an abundant number, since it is smaller than the sum of its proper divisors (147509692902).

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

104951538666 is a wasteful number, since it uses less digits than its factorization.

104951538666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69896 (or 69893 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 104951538666 in words is "one hundred four billion, nine hundred fifty-one million, five hundred thirty-eight thousand, six hundred sixty-six".