5465651216421 has 32 divisors (see below), whose sum is σ = 8033148432000. Its totient is φ = 3278051905280.

The previous prime is 5465651216387. The next prime is 5465651216437. The reversal of 5465651216421 is 1246121565645.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5465651216421 - 2⁶ = 5465651216357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5465651212421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 743466 + ... + 3388811.

It is an arithmetic number, because the mean of its divisors is an integer number (251035888500).

Almost surely, 2^{5465651216421} is an apocalyptic number.

It is an amenable number.

5465651216421 is a deficient number, since it is larger than the sum of its proper divisors (2567497215579).

5465651216421 is a wasteful number, since it uses less digits than its factorization.

5465651216421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4132709.

The product of its digits is 1728000, while the sum is 48.

The spelling of 5465651216421 in words is "five trillion, four hundred sixty-five billion, six hundred fifty-one million, two hundred sixteen thousand, four hundred twenty-one".