10551607421 has 8 divisors (see below), whose sum is σ = 11194414080. Its totient is φ = 9917546688.

The previous prime is 10551607403. The next prime is 10551607427. The reversal of 10551607421 is 12470615501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10551607421 is a prime.

It is a super-2 number, since 2×10551607421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10551607427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2183996 + ... + 2188821.

It is an arithmetic number, because the mean of its divisors is an integer number (1399301760).

Almost surely, 2^10551607421 is an apocalyptic number.

It is an amenable number.

10551607421 is a deficient number, since it is larger than the sum of its proper divisors (642806659).

10551607421 is a wasteful number, since it uses less digits than its factorization.

10551607421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372963.

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 10551607421 in words is "ten billion, five hundred fifty-one million, six hundred seven thousand, four hundred twenty-one".