61101016552 has 16 divisors (see below), whose sum is σ = 114620623200. Its totient is φ = 30535517040.

The previous prime is 61101016513. The next prime is 61101016553. The reversal of 61101016552 is 25561010116.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 61101016552.

It is not an unprimeable number, because it can be changed into a prime (61101016553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1856574 + ... + 1889197.

It is an arithmetic number, because the mean of its divisors is an integer number (7163788950).

Almost surely, 2^61101016552 is an apocalyptic number.

It is an amenable number.

61101016552 is a deficient number, since it is larger than the sum of its proper divisors (53519606648).

61101016552 is a wasteful number, since it uses less digits than its factorization.

61101016552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747816 (or 3747812 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

Adding to 61101016552 its reverse (25561010116), we get a palindrome (86662026668).

The spelling of 61101016552 in words is "sixty-one billion, one hundred one million, sixteen thousand, five hundred fifty-two".