2157520333346 has 32 divisors (see below), whose sum is σ = 3826503210240. Its totient is φ = 892683320256.

The previous prime is 2157520333343. The next prime is 2157520333361. The reversal of 2157520333346 is 6433330257512.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2157520333297 and 2157520333306.

It is not an unprimeable number, because it can be changed into a prime (2157520333343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4182920 + ... + 4670316.

It is an arithmetic number, because the mean of its divisors is an integer number (119578225320).

Almost surely, 2^{2157520333346} is an apocalyptic number.

2157520333346 is a deficient number, since it is larger than the sum of its proper divisors (1668982876894).

2157520333346 is a wasteful number, since it uses less digits than its factorization.

2157520333346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498338.

The product of its (nonzero) digits is 1360800, while the sum is 44.

The spelling of 2157520333346 in words is "two trillion, one hundred fifty-seven billion, five hundred twenty million, three hundred thirty-three thousand, three hundred forty-six".