6155445516 has 24 divisors (see below), whose sum is σ = 15668407104. Its totient is φ = 1865286480.

The previous prime is 6155445509. The next prime is 6155445533.

6155445516 is nontrivially palindromic in base 10.

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, 23315950 + ... + 23316213.

It is an arithmetic number, because the mean of its divisors is an integer number (652850296).

Almost surely, 2^6155445516 is an apocalyptic number.

6155445516 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6155445516 is an abundant number, since it is smaller than the sum of its proper divisors (9512961588).

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

6155445516 is a wasteful number, since it uses less digits than its factorization.

6155445516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46632181 (or 46632179 counting only the distinct ones).

The product of its digits is 360000, while the sum is 42.

The square root of 6155445516 is about 78456.6473665552. The cubic root of 6155445516 is about 1832.6793955402.

The spelling of 6155445516 in words is "six billion, one hundred fifty-five million, four hundred forty-five thousand, five hundred sixteen".