615256148261 has 8 divisors (see below), whose sum is σ = 651507632064. Its totient is φ = 579011325120.

The previous prime is 615256148251. The next prime is 615256148267. The reversal of 615256148261 is 162841652516.

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 615256148261 - 2¹⁰ = 615256147237 is a prime.

It is a super-2 number, since 2×615256148261² (a number of 24 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 (615256148267) 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, 1474355 + ... + 1845056.

It is an arithmetic number, because the mean of its divisors is an integer number (81438454008).

Almost surely, 2^615256148261 is an apocalyptic number.

It is an amenable number.

615256148261 is a deficient number, since it is larger than the sum of its proper divisors (36251483803).

615256148261 is a wasteful number, since it uses less digits than its factorization.

615256148261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330331.

The product of its digits is 691200, while the sum is 47.

The spelling of 615256148261 in words is "six hundred fifteen billion, two hundred fifty-six million, one hundred forty-eight thousand, two hundred sixty-one".