61355454652 has 6 divisors (see below), whose sum is σ = 107372045648. Its totient is φ = 30677727324.

The previous prime is 61355454583. The next prime is 61355454653. The reversal of 61355454652 is 25645455316.

It is a super-2 number, since 2×61355454652² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61355454653) 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, 7669431828 + ... + 7669431835.

Almost surely, 2^61355454652 is an apocalyptic number.

It is an amenable number.

61355454652 is a deficient number, since it is larger than the sum of its proper divisors (46016590996).

61355454652 is a wasteful number, since it uses less digits than its factorization.

61355454652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15338863667 (or 15338863665 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 46.

The spelling of 61355454652 in words is "sixty-one billion, three hundred fifty-five million, four hundred fifty-four thousand, six hundred fifty-two".