155516212068 has 24 divisors (see below), whose sum is σ = 414709899072. Its totient is φ = 44433203424.

The previous prime is 155516212057. The next prime is 155516212073. The reversal of 155516212068 is 860212615551.

155516212068 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 925691655 + ... + 925691822.

It is an arithmetic number, because the mean of its divisors is an integer number (17279579128).

Almost surely, 2^155516212068 is an apocalyptic number.

It is an amenable number.

155516212068 is an abundant number, since it is smaller than the sum of its proper divisors (259193687004).

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

155516212068 is a wasteful number, since it uses less digits than its factorization.

155516212068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851383491 (or 1851383489 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 42.

The spelling of 155516212068 in words is "one hundred fifty-five billion, five hundred sixteen million, two hundred twelve thousand, sixty-eight".