212660151545 has 32 divisors (see below), whose sum is σ = 272571868800. Its totient is φ = 158817314304.

The previous prime is 212660151541. The next prime is 212660151547. The reversal of 212660151545 is 545151066212.

It is not a de Polignac number, because 212660151545 - 2² = 212660151541 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212660151499 and 212660151508.

It is not an unprimeable number, because it can be changed into a prime (212660151541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2434394 + ... + 2520236.

It is an arithmetic number, because the mean of its divisors is an integer number (8517870900).

Almost surely, 2^212660151545 is an apocalyptic number.

It is an amenable number.

212660151545 is a deficient number, since it is larger than the sum of its proper divisors (59911717255).

212660151545 is a wasteful number, since it uses less digits than its factorization.

212660151545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86249.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 212660151545 in words is "two hundred twelve billion, six hundred sixty million, one hundred fifty-one thousand, five hundred forty-five".