11355137761 has 8 divisors (see below), whose sum is σ = 12392914464. Its totient is φ = 10318276320.

The previous prime is 11355137749. The next prime is 11355137791. The reversal of 11355137761 is 16773155311.

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

It is not a de Polignac number, because 11355137761 - 2²¹ = 11353040609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11355137791) 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, 202740 + ... + 252613.

It is an arithmetic number, because the mean of its divisors is an integer number (1549114308).

Almost surely, 2^11355137761 is an apocalyptic number.

11355137761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11355137761 is a deficient number, since it is larger than the sum of its proper divisors (1037776703).

11355137761 is a wasteful number, since it uses less digits than its factorization.

11355137761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457631.

The product of its digits is 66150, while the sum is 40.

The spelling of 11355137761 in words is "eleven billion, three hundred fifty-five million, one hundred thirty-seven thousand, seven hundred sixty-one".