2015400661230 has 64 divisors (see below), whose sum is σ = 5283944160768. Its totient is φ = 487909868160.

The previous prime is 2015400661193. The next prime is 2015400661273. The reversal of 2015400661230 is 321660045102.

It is a super-2 number, since 2×2015400661230² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3960417 + ... + 4440236.

It is an arithmetic number, because the mean of its divisors is an integer number (82561627512).

Almost surely, 2^{2015400661230} is an apocalyptic number.

2015400661230 is an abundant number, since it is smaller than the sum of its proper divisors (3268543499538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2015400661230 is a wasteful number, since it uses less digits than its factorization.

2015400661230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8401401.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 2015400661230 in words is "two trillion, fifteen billion, four hundred million, six hundred sixty-one thousand, two hundred thirty".