61151004532 has 12 divisors (see below), whose sum is σ = 107045309700. Its totient is φ = 30566630336.

The previous prime is 61151004493. The next prime is 61151004533. The reversal of 61151004532 is 23540015116.

It can be written as a sum of positive squares in 2 ways, for example, as 9168828516 + 51982176016 = 95754^2 + 227996^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61151004532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61151004533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2202463 + ... + 2230054.

It is an arithmetic number, because the mean of its divisors is an integer number (8920442475).

Almost surely, 2^61151004532 is an apocalyptic number.

It is an amenable number.

61151004532 is a deficient number, since it is larger than the sum of its proper divisors (45894305168).

61151004532 is a wasteful number, since it uses less digits than its factorization.

61151004532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435970 (or 4435968 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 61151004532 its reverse (23540015116), we get a palindrome (84691019648).

The spelling of 61151004532 in words is "sixty-one billion, one hundred fifty-one million, four thousand, five hundred thirty-two".