155540244374 has 4 divisors (see below), whose sum is σ = 233310366564. Its totient is φ = 77770122186.

The previous prime is 155540244287. The next prime is 155540244413. The reversal of 155540244374 is 473442045551.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38885061092 + ... + 38885061095.

It is an arithmetic number, because the mean of its divisors is an integer number (58327591641).

Almost surely, 2^155540244374 is an apocalyptic number.

155540244374 is a deficient number, since it is larger than the sum of its proper divisors (77770122190).

155540244374 is an equidigital number, since it uses as much as digits as its factorization.

155540244374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77770122189.

The product of its (nonzero) digits is 1344000, while the sum is 44.

The spelling of 155540244374 in words is "one hundred fifty-five billion, five hundred forty million, two hundred forty-four thousand, three hundred seventy-four".