62165947561 has 9 divisors (see below), whose sum is σ = 62582344951. Its totient is φ = 61752307432.

The previous prime is 62165947553. The next prime is 62165947583. The reversal of 62165947561 is 16574956126.

It is a happy number.

The square root of 62165947561 is 249331.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 54272691225 + 7893256336 = 232965^2 + 88844^2 .

It is not a de Polignac number, because 62165947561 - 2³ = 62165947553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 62165947499 and 62165947508.

It is not an unprimeable number, because it can be changed into a prime (62165947541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 41637531 + ... + 41639023.

Almost surely, 2^62165947561 is an apocalyptic number.

62165947561 is the 249331-st square number.

62165947561 is the 124666-th centered octagonal number.

It is an amenable number.

62165947561 is a deficient number, since it is larger than the sum of its proper divisors (416397390).

62165947561 is an frugal number, since it uses more digits than its factorization.

62165947561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320 (or 1660 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 52.

The spelling of 62165947561 in words is "sixty-two billion, one hundred sixty-five million, nine hundred forty-seven thousand, five hundred sixty-one".