253665243148 has 24 divisors (see below), whose sum is σ = 445864102992. Its totient is φ = 126276661824.

The previous prime is 253665243133. The next prime is 253665243239. The reversal of 253665243148 is 841342566352.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730986 + ... + 1020622.

It is an arithmetic number, because the mean of its divisors is an integer number (18577670958).

Almost surely, 2^253665243148 is an apocalyptic number.

It is an amenable number.

253665243148 is a deficient number, since it is larger than the sum of its proper divisors (192198859844).

253665243148 is a wasteful number, since it uses less digits than its factorization.

253665243148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290601 (or 290599 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 49.

The spelling of 253665243148 in words is "two hundred fifty-three billion, six hundred sixty-five million, two hundred forty-three thousand, one hundred forty-eight".