2155536238148 has 48 divisors (see below), whose sum is σ = 4143699504000. Its totient is φ = 976571405568.

The previous prime is 2155536238133. The next prime is 2155536238157. The reversal of 2155536238148 is 8418326355512.

It is a self number, because there is not a number n which added to its sum of digits gives 2155536238148.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25284218 + ... + 25369326.

It is an arithmetic number, because the mean of its divisors is an integer number (86327073000).

Almost surely, 2^{2155536238148} is an apocalyptic number.

It is an amenable number.

2155536238148 is a deficient number, since it is larger than the sum of its proper divisors (1988163265852).

2155536238148 is a wasteful number, since it uses less digits than its factorization.

2155536238148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99644 (or 99642 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 53.

The spelling of 2155536238148 in words is "two trillion, one hundred fifty-five billion, five hundred thirty-six million, two hundred thirty-eight thousand, one hundred forty-eight".