11397055767551 has 16 divisors (see below), whose sum is σ = 12024371604960. Its totient is φ = 10785770835840.

The previous prime is 11397055767547. The next prime is 11397055767571. The reversal of 11397055767551 is 15576755079311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11397055767551 - 2² = 11397055767547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11397055767541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2103005 + ... + 5216966.

It is an arithmetic number, because the mean of its divisors is an integer number (751523225310).

Almost surely, 2^{11397055767551} is an apocalyptic number.

11397055767551 is a deficient number, since it is larger than the sum of its proper divisors (627315837409).

11397055767551 is a wasteful number, since it uses less digits than its factorization.

11397055767551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7321066.

The product of its (nonzero) digits is 34728750, while the sum is 62.

The spelling of 11397055767551 in words is "eleven trillion, three hundred ninety-seven billion, fifty-five million, seven hundred sixty-seven thousand, five hundred fifty-one".