21030414655534 has 16 divisors (see below), whose sum is σ = 32105978550000. Its totient is φ = 10328707194624.

The previous prime is 21030414655519. The next prime is 21030414655553. The reversal of 21030414655534 is 43555641403012.

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, 71199237 + ... + 71494000.

It is an arithmetic number, because the mean of its divisors is an integer number (2006623659375).

Almost surely, 2^{21030414655534} is an apocalyptic number.

21030414655534 is a deficient number, since it is larger than the sum of its proper divisors (11075563894466).

21030414655534 is a wasteful number, since it uses less digits than its factorization.

21030414655534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142694547.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 21030414655534 in words is "twenty-one trillion, thirty billion, four hundred fourteen million, six hundred fifty-five thousand, five hundred thirty-four".