155540373208 has 64 divisors (see below), whose sum is σ = 340571952000. Its totient is φ = 65843827200.

The previous prime is 155540373181. The next prime is 155540373239. The reversal of 155540373208 is 802373045551.

It is a super-2 number, since 2×155540373208² (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 15 ways as a sum of consecutive naturals, for example, 689713 + ... + 887008.

It is an arithmetic number, because the mean of its divisors is an integer number (5321436750).

Almost surely, 2^155540373208 is an apocalyptic number.

It is an amenable number.

155540373208 is an abundant number, since it is smaller than the sum of its proper divisors (185031578792).

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

155540373208 is a wasteful number, since it uses less digits than its factorization.

155540373208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576816 (or 1576812 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 155540373208 in words is "one hundred fifty-five billion, five hundred forty million, three hundred seventy-three thousand, two hundred eight".