213562658066 has 16 divisors (see below), whose sum is σ = 339276128256. Its totient is φ = 100473888576.

The previous prime is 213562658033. The next prime is 213562658131. The reversal of 213562658066 is 660856265312.

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, 685586 + ... + 947181.

It is an arithmetic number, because the mean of its divisors is an integer number (21204758016).

Almost surely, 2^213562658066 is an apocalyptic number.

213562658066 is a deficient number, since it is larger than the sum of its proper divisors (125713470190).

213562658066 is a wasteful number, since it uses less digits than its factorization.

213562658066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636633.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 213562658066 in words is "two hundred thirteen billion, five hundred sixty-two million, six hundred fifty-eight thousand, sixty-six".