2157002050755 has 8 divisors (see below), whose sum is σ = 3451203281232. Its totient is φ = 1150401093728.

The previous prime is 2157002050747. The next prime is 2157002050759. The reversal of 2157002050755 is 5570502007512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2157002050755 - 2³ = 2157002050747 is a prime.

It is a super-2 number, since 2×2157002050755² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2157002050759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71900068344 + ... + 71900068373.

It is an arithmetic number, because the mean of its divisors is an integer number (431400410154).

Almost surely, 2^{2157002050755} is an apocalyptic number.

2157002050755 is a deficient number, since it is larger than the sum of its proper divisors (1294201230477).

2157002050755 is a wasteful number, since it uses less digits than its factorization.

2157002050755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143800136725.

The product of its (nonzero) digits is 122500, while the sum is 39.

The spelling of 2157002050755 in words is "two trillion, one hundred fifty-seven billion, two million, fifty thousand, seven hundred fifty-five".