123995559802 has 16 divisors (see below), whose sum is σ = 191597324832. Its totient is φ = 60139910160.

The previous prime is 123995559791. The next prime is 123995559817. The reversal of 123995559802 is 208955599321.

It is a super-2 number, since 2×123995559802² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2506648 + ... + 2555635.

It is an arithmetic number, because the mean of its divisors is an integer number (11974832802).

Almost surely, 2^123995559802 is an apocalyptic number.

123995559802 is a deficient number, since it is larger than the sum of its proper divisors (67601765030).

123995559802 is a wasteful number, since it uses less digits than its factorization.

123995559802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5062653.

The product of its (nonzero) digits is 8748000, while the sum is 58.

The spelling of 123995559802 in words is "one hundred twenty-three billion, nine hundred ninety-five million, five hundred fifty-nine thousand, eight hundred two".