55615101516 has 144 divisors (see below), whose sum is σ = 159119950080. Its totient is φ = 16250129280.

The previous prime is 55615101499. The next prime is 55615101541. The reversal of 55615101516 is 61510151655.

It is a happy number.

55615101516 is a `hidden beast` number, since 5 + 5 + 615 + 10 + 15 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1477611 + ... + 1514781.

Almost surely, 2^55615101516 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 55615101516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79559975040).

55615101516 is an abundant number, since it is smaller than the sum of its proper divisors (103504848564).

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

55615101516 is a wasteful number, since it uses less digits than its factorization.

55615101516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37356 (or 37351 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 55615101516 in words is "fifty-five billion, six hundred fifteen million, one hundred one thousand, five hundred sixteen".