155144770001 has 16 divisors (see below), whose sum is σ = 171315897984. Its totient is φ = 139592605824.

The previous prime is 155144769979. The next prime is 155144770037. The reversal of 155144770001 is 100077441551.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155144770001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155144770601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12716 + ... + 557181.

It is an arithmetic number, because the mean of its divisors is an integer number (10707243624).

Almost surely, 2^155144770001 is an apocalyptic number.

It is an amenable number.

155144770001 is a deficient number, since it is larger than the sum of its proper divisors (16171127983).

155144770001 is a wasteful number, since it uses less digits than its factorization.

155144770001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570440.

The product of its (nonzero) digits is 19600, while the sum is 35.

The spelling of 155144770001 in words is "one hundred fifty-five billion, one hundred forty-four million, seven hundred seventy thousand, one".