964646005501 has 2 divisors, whose sum is σ = 964646005502. Its totient is φ = 964646005500.

The previous prime is 964646005451. The next prime is 964646005517. The reversal of 964646005501 is 105500646469.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 877830329476 + 86815676025 = 936926^2 + 294645^2 .

It is an emirp because it is prime and its reverse (105500646469) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 964646005501 - 2¹⁹ = 964645481213 is a prime.

It is a super-2 number, since 2×964646005501² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (964646000501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482323002750 + 482323002751.

It is an arithmetic number, because the mean of its divisors is an integer number (482323002751).

Almost surely, 2^964646005501 is an apocalyptic number.

It is an amenable number.

964646005501 is a deficient number, since it is larger than the sum of its proper divisors (1).

964646005501 is an equidigital number, since it uses as much as digits as its factorization.

964646005501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 964646005501 in words is "nine hundred sixty-four billion, six hundred forty-six million, five thousand, five hundred one".