155693198630 has 16 divisors (see below), whose sum is σ = 280259138160. Its totient is φ = 62274750432.

The previous prime is 155693198627. The next prime is 155693198669. The reversal of 155693198630 is 36891396551.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46625 + ... + 559964.

It is an arithmetic number, because the mean of its divisors is an integer number (17516196135).

Almost surely, 2^155693198630 is an apocalyptic number.

155693198630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155693198630 is a deficient number, since it is larger than the sum of its proper divisors (124565939530).

155693198630 is a wasteful number, since it uses less digits than its factorization.

155693198630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632263.

The product of its (nonzero) digits is 5248800, while the sum is 56.

It can be divided in two parts, 1556931 and 98630, that added together give a palindrome (1655561).

The spelling of 155693198630 in words is "one hundred fifty-five billion, six hundred ninety-three million, one hundred ninety-eight thousand, six hundred thirty".