2155410021362 has 32 divisors (see below), whose sum is σ = 3690403062192. Its totient is φ = 935328190464.

The previous prime is 2155410021343. The next prime is 2155410021367. The reversal of 2155410021362 is 2631200145512.

It can be written as a sum of positive squares in 8 ways, for example, as 816527297161 + 1338882724201 = 903619^2 + 1157101^2 .

It is not an unprimeable number, because it can be changed into a prime (2155410021367) 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, 2063813 + ... + 2927480.

Almost surely, 2^{2155410021362} is an apocalyptic number.

2155410021362 is a deficient number, since it is larger than the sum of its proper divisors (1534993040830).

2155410021362 is a wasteful number, since it uses less digits than its factorization.

2155410021362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4992302.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 2155410021362 its reverse (2631200145512), we get a palindrome (4786610166874).

The spelling of 2155410021362 in words is "two trillion, one hundred fifty-five billion, four hundred ten million, twenty-one thousand, three hundred sixty-two".