2015225672670 has 192 divisors, whose sum is σ = 6102545080320. Its totient is φ = 451893821184.

The previous prime is 2015225672641. The next prime is 2015225672687. The reversal of 2015225672670 is 762765225102.

2015225672670 is a `hidden beast` number, since 2 + 0 + 1 + 5 + 22 + 567 + 2 + 67 + 0 = 666.

It is a super-2 number, since 2×2015225672670² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 95 ways as a sum of consecutive naturals, for example, 7684939 + ... + 7942841.

It is an arithmetic number, because the mean of its divisors is an integer number (31784088960).

Almost surely, 2^{2015225672670} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2015225672670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3051272540160).

2015225672670 is an abundant number, since it is smaller than the sum of its proper divisors (4087319407650).

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

2015225672670 is a wasteful number, since it uses less digits than its factorization.

2015225672670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258159 (or 258156 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 2015225672670 in words is "two trillion, fifteen billion, two hundred twenty-five million, six hundred seventy-two thousand, six hundred seventy".