61022201602 has 4 divisors (see below), whose sum is σ = 91533302406. Its totient is φ = 30511100800.

The previous prime is 61022201507. The next prime is 61022201609. The reversal of 61022201602 is 20610222016.

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., 37951325721 + 23070875881 = 194811^2 + 151891^2 .

It is a super-3 number, since 3×61022201602³ (a number of 33 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (61022201609) 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 as a sum of consecutive naturals, namely, 15255550399 + ... + 15255550402.

Almost surely, 2^61022201602 is an apocalyptic number.

61022201602 is a deficient number, since it is larger than the sum of its proper divisors (30511100804).

61022201602 is a wasteful number, since it uses less digits than its factorization.

61022201602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30511100803.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 61022201602 its reverse (20610222016), we get a palindrome (81632423618).

The spelling of 61022201602 in words is "sixty-one billion, twenty-two million, two hundred one thousand, six hundred two".