61556352322 has 4 divisors (see below), whose sum is σ = 92334528486. Its totient is φ = 30778176160.

The previous prime is 61556352301. The next prime is 61556352329. The reversal of 61556352322 is 22325365516.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 59893262361 + 1663089961 = 244731^2 + 40781^2 .

It is a super-2 number, since 2×61556352322² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61556352329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15389088079 + ... + 15389088082.

Almost surely, 2^61556352322 is an apocalyptic number.

61556352322 is a deficient number, since it is larger than the sum of its proper divisors (30778176164).

61556352322 is a wasteful number, since it uses less digits than its factorization.

61556352322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30778176163.

The product of its digits is 324000, while the sum is 40.

The spelling of 61556352322 in words is "sixty-one billion, five hundred fifty-six million, three hundred fifty-two thousand, three hundred twenty-two".