61020165670 has 16 divisors (see below), whose sum is σ = 116297257248. Its totient is φ = 22972297600.

The previous prime is 61020165649. The next prime is 61020165697. The reversal of 61020165670 is 7656102016.

It is a happy number.

61020165670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179470906 + ... + 179471245.

It is an arithmetic number, because the mean of its divisors is an integer number (7268578578).

Almost surely, 2^61020165670 is an apocalyptic number.

61020165670 is a deficient number, since it is larger than the sum of its proper divisors (55277091578).

61020165670 is a wasteful number, since it uses less digits than its factorization.

61020165670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358942175.

The product of its (nonzero) digits is 15120, while the sum is 34.

Adding to 61020165670 its reverse (7656102016), we get a palindrome (68676267686).

The spelling of 61020165670 in words is "sixty-one billion, twenty million, one hundred sixty-five thousand, six hundred seventy".