155651000066 has 16 divisors (see below), whose sum is σ = 237956781888. Its totient is φ = 76332999600.

The previous prime is 155651000059. The next prime is 155651000083. The reversal of 155651000066 is 660000156551.

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, 108161 + ... + 568331.

It is an arithmetic number, because the mean of its divisors is an integer number (14872298868).

Almost surely, 2^155651000066 is an apocalyptic number.

155651000066 is a deficient number, since it is larger than the sum of its proper divisors (82305781822).

155651000066 is a wasteful number, since it uses less digits than its factorization.

155651000066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463417.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 155651000066 in words is "one hundred fifty-five billion, six hundred fifty-one million, sixty-six", and thus it is an aban number.