65421662030 has 16 divisors (see below), whose sum is σ = 123956833680. Its totient is φ = 24791366592.

The previous prime is 65421661967. The next prime is 65421662051. The reversal of 65421662030 is 3026612456.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172162079 + ... + 172162458.

It is an arithmetic number, because the mean of its divisors is an integer number (7747302105).

Almost surely, 2^65421662030 is an apocalyptic number.

65421662030 is a deficient number, since it is larger than the sum of its proper divisors (58535171650).

65421662030 is a wasteful number, since it uses less digits than its factorization.

65421662030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344324563.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 65421662030 in words is "sixty-five billion, four hundred twenty-one million, six hundred sixty-two thousand, thirty".