7554513580661 has 4 divisors (see below), whose sum is σ = 7564572853824. Its totient is φ = 7544454307500.

The previous prime is 7554513580637. The next prime is 7554513580739. The reversal of 7554513580661 is 1660853154557.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7554513580661 - 2⁶ = 7554513580597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7554513580597 and 7554513580606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7554513580631) 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, 5029635455 + ... + 5029636956.

It is an arithmetic number, because the mean of its divisors is an integer number (1891143213456).

Almost surely, 2^{7554513580661} is an apocalyptic number.

It is an amenable number.

7554513580661 is a deficient number, since it is larger than the sum of its proper divisors (10059273163).

7554513580661 is a wasteful number, since it uses less digits than its factorization.

7554513580661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10059273162.

The product of its (nonzero) digits is 15120000, while the sum is 56.

The spelling of 7554513580661 in words is "seven trillion, five hundred fifty-four billion, five hundred thirteen million, five hundred eighty thousand, six hundred sixty-one".