15201253223442 has 80 divisors (see below), whose sum is σ = 40016974358592. Its totient is φ = 4252098797280.

The previous prime is 15201253223407. The next prime is 15201253223477. The reversal of 15201253223442 is 24432235210251.

15201253223442 is a `hidden beast` number, since 1 + 5 + 201 + 2 + 5 + 3 + 2 + 2 + 3 + 442 = 666.

It is an interprime number because it is at equal distance from previous prime (15201253223407) and next prime (15201253223477).

It is a junction number, because it is equal to n+sod(n) for n = 15201253223397 and 15201253223406.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 328070878 + ... + 328117209.

Almost surely, 2^{15201253223442} is an apocalyptic number.

15201253223442 is an abundant number, since it is smaller than the sum of its proper divisors (24815721135150).

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

15201253223442 is a wasteful number, since it uses less digits than its factorization.

15201253223442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656188125 (or 656188116 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 15201253223442 its reverse (24432235210251), we get a palindrome (39633488433693).

The spelling of 15201253223442 in words is "fifteen trillion, two hundred one billion, two hundred fifty-three million, two hundred twenty-three thousand, four hundred forty-two".