61012017153 has 16 divisors (see below), whose sum is σ = 90398394240. Its totient is φ = 40670078832.

The previous prime is 61012017151. The next prime is 61012017163. The reversal of 61012017153 is 35171021016.

61012017153 is a `hidden beast` number, since 610 + 1 + 20 + 17 + 15 + 3 = 666.

It is not a de Polignac number, because 61012017153 - 2¹ = 61012017151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 124500 + ... + 370842.

It is an arithmetic number, because the mean of its divisors is an integer number (5649899640).

Almost surely, 2^61012017153 is an apocalyptic number.

It is an amenable number.

61012017153 is a deficient number, since it is larger than the sum of its proper divisors (29386377087).

61012017153 is a wasteful number, since it uses less digits than its factorization.

61012017153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255525 (or 255519 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

Adding to 61012017153 its reverse (35171021016), we get a palindrome (96183038169).

The spelling of 61012017153 in words is "sixty-one billion, twelve million, seventeen thousand, one hundred fifty-three".