155440510202601 has 192 divisors, whose sum is σ = 267093264582144. Its totient is φ = 86325668352000.

The previous prime is 155440510202591. The next prime is 155440510202633. The reversal of 155440510202601 is 106202015044551.

155440510202601 is a `hidden beast` number, since 1 + 5 + 5 + 4 + 40 + 5 + 1 + 0 + 2 + 0 + 2 + 601 = 666.

It is not a de Polignac number, because 155440510202601 - 2²⁶ = 155440443093737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155440510202501) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 479005335 + ... + 479329731.

It is an arithmetic number, because the mean of its divisors is an integer number (1391110753032).

Almost surely, 2^{155440510202601} is an apocalyptic number.

It is an amenable number.

155440510202601 is a deficient number, since it is larger than the sum of its proper divisors (111652754379543).

155440510202601 is a wasteful number, since it uses less digits than its factorization.

155440510202601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324624 (or 324621 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 155440510202601 in words is "one hundred fifty-five trillion, four hundred forty billion, five hundred ten million, two hundred two thousand, six hundred one".