61003736667 has 12 divisors (see below), whose sum is σ = 88122264880. Its totient is φ = 40666501008.

The previous prime is 61003736603. The next prime is 61003736669. The reversal of 61003736667 is 76663730016.

61003736667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61003736667 - 2⁶ = 61003736603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61003736669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70567 + ... + 356352.

Almost surely, 2^61003736667 is an apocalyptic number.

61003736667 is a deficient number, since it is larger than the sum of its proper divisors (27118528213).

61003736667 is a wasteful number, since it uses less digits than its factorization.

61003736667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442802 (or 442799 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 45.

The spelling of 61003736667 in words is "sixty-one billion, three million, seven hundred thirty-six thousand, six hundred sixty-seven".