155510151561005 has 32 divisors (see below), whose sum is σ = 204854681145600. Its totient is φ = 112948272059392.

The previous prime is 155510151560989. The next prime is 155510151561031. The reversal of 155510151561005 is 500165151015551.

It is not a de Polignac number, because 155510151561005 - 2⁴ = 155510151560989 is a prime.

It is a super-2 number, since 2×155510151561005² (a number of 29 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 31 ways as a sum of consecutive naturals, for example, 394970444 + ... + 395363973.

It is an arithmetic number, because the mean of its divisors is an integer number (6401708785800).

Almost surely, 2^{155510151561005} is an apocalyptic number.

It is an amenable number.

155510151561005 is a deficient number, since it is larger than the sum of its proper divisors (49344529584595).

155510151561005 is a wasteful number, since it uses less digits than its factorization.

155510151561005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790334533.

The product of its (nonzero) digits is 93750, while the sum is 41.

The spelling of 155510151561005 in words is "one hundred fifty-five trillion, five hundred ten billion, one hundred fifty-one million, five hundred sixty-one thousand, five".