2155203342332 has 24 divisors (see below), whose sum is σ = 3995469013536. Its totient is φ = 1013704386048.

The previous prime is 2155203342287. The next prime is 2155203342431. The reversal of 2155203342332 is 2332433025512.

It is a junction number, because it is equal to n+sod(n) for n = 2155203342292 and 2155203342301.

It is a congruent number.

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, 7815848 + ... + 8086895.

It is an arithmetic number, because the mean of its divisors is an integer number (166477875564).

Almost surely, 2^{2155203342332} is an apocalyptic number.

It is an amenable number.

2155203342332 is a deficient number, since it is larger than the sum of its proper divisors (1840265671204).

2155203342332 is a wasteful number, since it uses less digits than its factorization.

2155203342332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15904757 (or 15904755 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 2155203342332 its reverse (2332433025512), we get a palindrome (4487636367844).

The spelling of 2155203342332 in words is "two trillion, one hundred fifty-five billion, two hundred three million, three hundred forty-two thousand, three hundred thirty-two".