155057261172276 has 48 divisors (see below), whose sum is σ = 370625994889920. Its totient is φ = 50424945742080.

The previous prime is 155057261172263. The next prime is 155057261172283. The reversal of 155057261172276 is 672271162750551.

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, 263234290 + ... + 263822678.

It is an arithmetic number, because the mean of its divisors is an integer number (7721374893540).

Almost surely, 2^{155057261172276} is an apocalyptic number.

It is an amenable number.

155057261172276 is an abundant number, since it is smaller than the sum of its proper divisors (215568733717644).

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

155057261172276 is a wasteful number, since it uses less digits than its factorization.

155057261172276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124064 (or 1124062 counting only the distinct ones).

The product of its (nonzero) digits is 12348000, while the sum is 57.

The spelling of 155057261172276 in words is "one hundred fifty-five trillion, fifty-seven billion, two hundred sixty-one million, one hundred seventy-two thousand, two hundred seventy-six".