60999521644 has 6 divisors (see below), whose sum is σ = 106749162884. Its totient is φ = 30499760820.

The previous prime is 60999521633. The next prime is 60999521647. The reversal of 60999521644 is 44612599906.

It is not an unprimeable number, because it can be changed into a prime (60999521647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7624940202 + ... + 7624940209.

Almost surely, 2^60999521644 is an apocalyptic number.

It is an amenable number.

60999521644 is a deficient number, since it is larger than the sum of its proper divisors (45749641240).

60999521644 is a wasteful number, since it uses less digits than its factorization.

60999521644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15249880415 (or 15249880413 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 60999521644 in words is "sixty billion, nine hundred ninety-nine million, five hundred twenty-one thousand, six hundred forty-four".