1215514440152 has 16 divisors (see below), whose sum is σ = 2316451700400. Its totient is φ = 597793986720.

The previous prime is 1215514440139. The next prime is 1215514440163. The reversal of 1215514440152 is 2510444155121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1245403652 + ... + 1245404627.

It is an arithmetic number, because the mean of its divisors is an integer number (144778231275).

Almost surely, 2^{1215514440152} is an apocalyptic number.

It is an amenable number.

1215514440152 is a deficient number, since it is larger than the sum of its proper divisors (1100937260248).

1215514440152 is a wasteful number, since it uses less digits than its factorization.

1215514440152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490808346 (or 2490808342 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 35.

Adding to 1215514440152 its reverse (2510444155121), we get a palindrome (3725958595273).

The spelling of 1215514440152 in words is "one trillion, two hundred fifteen billion, five hundred fourteen million, four hundred forty thousand, one hundred fifty-two".