15515150161 has 8 divisors (see below), whose sum is σ = 17733070784. Its totient is φ = 13297597200.

The previous prime is 15515150159. The next prime is 15515150201. The reversal of 15515150161 is 16105151551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15515150161 - 2¹ = 15515150159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15515150141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5386 + ... + 176236.

It is an arithmetic number, because the mean of its divisors is an integer number (2216633848).

Almost surely, 2^15515150161 is an apocalyptic number.

It is an amenable number.

15515150161 is a deficient number, since it is larger than the sum of its proper divisors (2217920623).

15515150161 is a wasteful number, since it uses less digits than its factorization.

15515150161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183831.

The product of its (nonzero) digits is 3750, while the sum is 31.

The spelling of 15515150161 in words is "fifteen billion, five hundred fifteen million, one hundred fifty thousand, one hundred sixty-one".