101699123408 has 40 divisors (see below), whose sum is σ = 198061573248. Its totient is φ = 50587110272.

The previous prime is 101699123353. The next prime is 101699123411. The reversal of 101699123408 is 804321996101.

It is a Cunningham number, because it is equal to 318903²-1.

It is a super-2 number, since 2×101699123408² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 2531285 + ... + 2571147.

Almost surely, 2^101699123408 is an apocalyptic number.

It is an amenable number.

101699123408 is a deficient number, since it is larger than the sum of its proper divisors (96362449840).

101699123408 is a wasteful number, since it uses less digits than its factorization.

101699123408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40691 (or 40685 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 101699123408 in words is "one hundred one billion, six hundred ninety-nine million, one hundred twenty-three thousand, four hundred eight".