155199094620 has 24 divisors (see below), whose sum is σ = 434557465104. Its totient is φ = 41386425216.

The previous prime is 155199094613. The next prime is 155199094621. The reversal of 155199094620 is 26490991551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155199094621) 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, 1293325729 + ... + 1293325848.

It is an arithmetic number, because the mean of its divisors is an integer number (18106561046).

Almost surely, 2^155199094620 is an apocalyptic number.

155199094620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155199094620 is an abundant number, since it is smaller than the sum of its proper divisors (279358370484).

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

155199094620 is a wasteful number, since it uses less digits than its factorization.

155199094620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586651589 (or 2586651587 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 51.

The spelling of 155199094620 in words is "one hundred fifty-five billion, one hundred ninety-nine million, ninety-four thousand, six hundred twenty".