10551621071 has 2 divisors, whose sum is σ = 10551621072. Its totient is φ = 10551621070.

The previous prime is 10551621061. The next prime is 10551621083. The reversal of 10551621071 is 17012615501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10551621071 - 2²² = 10547426767 is a prime.

It is a super-2 number, since 2×10551621071² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10551621011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275810535 + 5275810536.

It is an arithmetic number, because the mean of its divisors is an integer number (5275810536).

Almost surely, 2^10551621071 is an apocalyptic number.

10551621071 is a deficient number, since it is larger than the sum of its proper divisors (1).

10551621071 is an equidigital number, since it uses as much as digits as its factorization.

10551621071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 29.

The spelling of 10551621071 in words is "ten billion, five hundred fifty-one million, six hundred twenty-one thousand, seventy-one".