10551266215501 has 4 divisors (see below), whose sum is σ = 11510472235104. Its totient is φ = 9592060195900.

The previous prime is 10551266215481. The next prime is 10551266215519.

10551266215501 is nontrivially palindromic in base 10.

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 a de Polignac number, because none of the positive numbers 2^k-10551266215501 is a prime.

It is a super-2 number, since 2×10551266215501² (a number of 27 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 (10551266215591) 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, 479603009785 + ... + 479603009806.

It is an arithmetic number, because the mean of its divisors is an integer number (2877618058776).

Almost surely, 2^{10551266215501} is an apocalyptic number.

10551266215501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10551266215501 is a deficient number, since it is larger than the sum of its proper divisors (959206019603).

10551266215501 is an equidigital number, since it uses as much as digits as its factorization.

10551266215501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959206019602.

The product of its (nonzero) digits is 90000, while the sum is 40.

The spelling of 10551266215501 in words is "ten trillion, five hundred fifty-one billion, two hundred sixty-six million, two hundred fifteen thousand, five hundred one".