2175156557061 has 8 divisors (see below), whose sum is σ = 2907861010080. Its totient is φ = 1446278237712.

The previous prime is 2175156557009. The next prime is 2175156557069. The reversal of 2175156557061 is 1607556515712.

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

It is not a de Polignac number, because 2175156557061 - 2¹⁸ = 2175156294917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2175156556995 and 2175156557013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2175156557069) 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, 956532090 + ... + 956534363.

It is an arithmetic number, because the mean of its divisors is an integer number (363482626260).

Almost surely, 2^{2175156557061} is an apocalyptic number.

It is an amenable number.

2175156557061 is a deficient number, since it is larger than the sum of its proper divisors (732704453019).

2175156557061 is a wasteful number, since it uses less digits than its factorization.

2175156557061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913066835.

The product of its (nonzero) digits is 2205000, while the sum is 51.

The spelling of 2175156557061 in words is "two trillion, one hundred seventy-five billion, one hundred fifty-six million, five hundred fifty-seven thousand, sixty-one".