615531123061 has 8 divisors (see below), whose sum is σ = 630555408000. Its totient is φ = 600507377760.

The previous prime is 615531123019. The next prime is 615531123071. The reversal of 615531123061 is 160321135516.

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 615531123061 - 2¹¹ = 615531121013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615531123001) 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, 3121990 + ... + 3313288.

It is an arithmetic number, because the mean of its divisors is an integer number (78819426000).

Almost surely, 2^615531123061 is an apocalyptic number.

It is an amenable number.

615531123061 is a deficient number, since it is larger than the sum of its proper divisors (15024284939).

615531123061 is a wasteful number, since it uses less digits than its factorization.

615531123061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269819.

The product of its (nonzero) digits is 16200, while the sum is 34.

Adding to 615531123061 its reverse (160321135516), we get a palindrome (775852258577).

The spelling of 615531123061 in words is "six hundred fifteen billion, five hundred thirty-one million, one hundred twenty-three thousand, sixty-one".