15166416642 has 64 divisors (see below), whose sum is σ = 33180585984. Its totient is φ = 4593314880.

The previous prime is 15166416623. The next prime is 15166416649. The reversal of 15166416642 is 24661466151.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15166416594 and 15166416603.

It is not an unprimeable number, because it can be changed into a prime (15166416649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4024243 + ... + 4028009.

It is an arithmetic number, because the mean of its divisors is an integer number (518446656).

Almost surely, 2^15166416642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15166416642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16590292992).

15166416642 is an abundant number, since it is smaller than the sum of its proper divisors (18014169342).

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

15166416642 is a wasteful number, since it uses less digits than its factorization.

15166416642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4583.

The product of its digits is 207360, while the sum is 42.

The spelling of 15166416642 in words is "fifteen billion, one hundred sixty-six million, four hundred sixteen thousand, six hundred forty-two".