964545555551 has 4 divisors (see below), whose sum is σ = 965061081504. Its totient is φ = 964030029600.

The previous prime is 964545555419. The next prime is 964545555557. The reversal of 964545555551 is 155555545469.

964545555551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 964545555551 - 2¹⁸ = 964545293407 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 (964545555557) 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, 257760170 + ... + 257763911.

It is an arithmetic number, because the mean of its divisors is an integer number (241265270376).

Almost surely, 2^964545555551 is an apocalyptic number.

964545555551 is a deficient number, since it is larger than the sum of its proper divisors (515525953).

964545555551 is a wasteful number, since it uses less digits than its factorization.

964545555551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515525952.

The product of its digits is 67500000, while the sum is 59.

The spelling of 964545555551 in words is "nine hundred sixty-four billion, five hundred forty-five million, five hundred fifty-five thousand, five hundred fifty-one".