155271211968 has 112 divisors (see below), whose sum is σ = 439473039264. Its totient is φ = 48210247680.

The previous prime is 155271211943. The next prime is 155271211987. The reversal of 155271211968 is 869112172551.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71398 + ... + 561818.

It is an arithmetic number, because the mean of its divisors is an integer number (3923866422).

Almost surely, 2^155271211968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155271211968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219736519632).

155271211968 is an abundant number, since it is smaller than the sum of its proper divisors (284201827296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155271211968 is a wasteful number, since it uses less digits than its factorization.

155271211968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490550 (or 490540 counting only the distinct ones).

The product of its digits is 302400, while the sum is 48.

The spelling of 155271211968 in words is "one hundred fifty-five billion, two hundred seventy-one million, two hundred eleven thousand, nine hundred sixty-eight".