1522000161661 has 12 divisors (see below), whose sum is σ = 1808159986368. Its totient is φ = 1276814723352.

The previous prime is 1522000161637. The next prime is 1522000161677. The reversal of 1522000161661 is 1661610002251.

It is not a de Polignac number, because 1522000161661 - 2²³ = 1521991773053 is a prime.

It is a super-2 number, since 2×1522000161661² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522000161691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330436291 + ... + 330440896.

It is an arithmetic number, because the mean of its divisors is an integer number (150679998864).

Almost surely, 2^{1522000161661} is an apocalyptic number.

It is an amenable number.

1522000161661 is a deficient number, since it is larger than the sum of its proper divisors (286159824707).

1522000161661 is an equidigital number, since it uses as much as digits as its factorization.

1522000161661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660877248 (or 660877241 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 1522000161661 in words is "one trillion, five hundred twenty-two billion, one hundred sixty-one thousand, six hundred sixty-one".