61012017159 has 8 divisors (see below), whose sum is σ = 81970344192. Its totient is φ = 40364184120.

The previous prime is 61012017151. The next prime is 61012017163. The reversal of 61012017159 is 95171021016.

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

It is not a de Polignac number, because 61012017159 - 2³ = 61012017151 is a prime.

It is a super-2 number, since 2×61012017159² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61012017151) 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, 77623039 + ... + 77623824.

It is an arithmetic number, because the mean of its divisors is an integer number (10246293024).

Almost surely, 2^61012017159 is an apocalyptic number.

61012017159 is a deficient number, since it is larger than the sum of its proper divisors (20958327033).

61012017159 is a wasteful number, since it uses less digits than its factorization.

61012017159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155246997.

The product of its (nonzero) digits is 3780, while the sum is 33.

The spelling of 61012017159 in words is "sixty-one billion, twelve million, seventeen thousand, one hundred fifty-nine".