61012300159 has 4 divisors (see below), whose sum is σ = 61016215104. Its totient is φ = 61008385216.

The previous prime is 61012300061. The next prime is 61012300199. The reversal of 61012300159 is 95100321016.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61012300159 - 2²⁷ = 60878082431 is a prime.

It is a super-2 number, since 2×61012300159² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61012300199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1934002 + ... + 1965295.

It is an arithmetic number, because the mean of its divisors is an integer number (15254053776).

Almost surely, 2^61012300159 is an apocalyptic number.

61012300159 is a deficient number, since it is larger than the sum of its proper divisors (3914945).

61012300159 is a wasteful number, since it uses less digits than its factorization.

61012300159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914944.

The product of its (nonzero) digits is 1620, while the sum is 28.

The spelling of 61012300159 in words is "sixty-one billion, twelve million, three hundred thousand, one hundred fifty-nine".