1015660010140 has 12 divisors (see below), whose sum is σ = 2132886021336. Its totient is φ = 406264004048.

The previous prime is 1015660010087. The next prime is 1015660010147. The reversal of 1015660010140 is 410100665101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015660010147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25391500234 + ... + 25391500273.

It is an arithmetic number, because the mean of its divisors is an integer number (177740501778).

Almost surely, 2^{1015660010140} is an apocalyptic number.

1015660010140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1015660010140 is an abundant number, since it is smaller than the sum of its proper divisors (1117226011196).

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

1015660010140 is a wasteful number, since it uses less digits than its factorization.

1015660010140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50783000516 (or 50783000514 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 1015660010140 its reverse (410100665101), we get a palindrome (1425760675241).

The spelling of 1015660010140 in words is "one trillion, fifteen billion, six hundred sixty million, ten thousand, one hundred forty".