211006453542 has 64 divisors (see below), whose sum is σ = 471404448000. Its totient is φ = 62574059520.

The previous prime is 211006453481. The next prime is 211006453543. The reversal of 211006453542 is 245354600112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211006453543) 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, 748917 + ... + 991407.

It is an arithmetic number, because the mean of its divisors is an integer number (7365694500).

Almost surely, 2^211006453542 is an apocalyptic number.

211006453542 is an abundant number, since it is smaller than the sum of its proper divisors (260397994458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211006453542 is a wasteful number, since it uses less digits than its factorization.

211006453542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242981.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 211006453542 in words is "two hundred eleven billion, six million, four hundred fifty-three thousand, five hundred forty-two".