155566001155 has 8 divisors (see below), whose sum is σ = 187068931200. Its totient is φ = 124192981056.

The previous prime is 155566001119. The next prime is 155566001167. The reversal of 155566001155 is 551100665551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155566001155 - 2¹³ = 155565992963 is a prime.

It is a super-2 number, since 2×155566001155² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32474850 + ... + 32479639.

It is an arithmetic number, because the mean of its divisors is an integer number (23383616400).

Almost surely, 2^155566001155 is an apocalyptic number.

155566001155 is a deficient number, since it is larger than the sum of its proper divisors (31502930045).

155566001155 is an equidigital number, since it uses as much as digits as its factorization.

155566001155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64954973.

The product of its (nonzero) digits is 112500, while the sum is 40.

The spelling of 155566001155 in words is "one hundred fifty-five billion, five hundred sixty-six million, one thousand, one hundred fifty-five".