155020830684 has 24 divisors (see below), whose sum is σ = 366293948160. Its totient is φ = 51019513584.

The previous prime is 155020830677. The next prime is 155020830689. The reversal of 155020830684 is 486038020551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155020830689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81761094 + ... + 81762989.

It is an arithmetic number, because the mean of its divisors is an integer number (15262247840).

Almost surely, 2^155020830684 is an apocalyptic number.

It is an amenable number.

155020830684 is an abundant number, since it is smaller than the sum of its proper divisors (211273117476).

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

155020830684 is a wasteful number, since it uses less digits than its factorization.

155020830684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163524169 (or 163524167 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 155020830684 in words is "one hundred fifty-five billion, twenty million, eight hundred thirty thousand, six hundred eighty-four".